// 指针版本的copyString
#include <stdio.h>

void copyString(char *to, char *from){
	for(; *from != '\0'; ++from, ++to)
		*to = *from;
		
	*to = '\0';
}

int main(void){
	void copyString(char *to, char *from);
	char string1[] = "A string to be copied.";
	char string2[50];
	
	copyString(string2, string1);
	printf("%s\n", string2);
	
	copyString(string2, "So is this.");
	printf("%s\n", string2);
	
	return 0;
}
